Jaime Casanova <jcasanov@xxxxxxxxxxxxxxxxxxx> writes: > LOG: begin tuple sort: nkeys = 1, workMem = 1024, randomAccess = f > LOG: switching to bounded heapsort at 641 tuples: CPU 0.08s/0.13u sec elapsed 0.25 sec > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.5", size 471010 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.10", size 81096 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.0", size 467373 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.9", size 110200 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.3", size 470011 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.8", size 157192 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.4", size 468681 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.12", size 101624 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.1", size 472285 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.11", size 100744 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.6", size 467173 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.7", size 141888 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.2", size 476227 > LOG: temporary file: path "base/pgsql_tmp/pgsql_tmp8507.13", size 89072 > LOG: performsort starting: CPU 0.10s/0.19u sec elapsed 0.33 sec > LOG: performsort done: CPU 0.10s/0.19u sec elapsed 0.33 sec > LOG: internal sort ended, 118 KB used: CPU 0.10s/0.19u sec elapsed 0.33 sec Hmm. Not clear where the temp files are coming from, but it's *not* the sort --- the "internal sort ended" line shows that that sort never went to disk. What kind of plan is feeding the sort node? regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
